全球定位系统2016，Vol.41Issue(1)：19-23,5.DOI:10.13442/j.gnss.1008-9268.2016.01.004
基于重力测量卫星的重力梯度辅助导航研究
Research on the Gravity Gradient Aided Navigation System Based on Gravity Satellite
摘要
Abstract
The inertial navigation system’s (INS) position error grows larger and larger as time goes on;it is likely to happen that no satellite signal to amend the INS ’s instrument in wartime ,therefore ,there is a growing emphasis on the gravity gradient aided navigation technology which is completely independent .This paper focuses on the gravity gradient aided navigation key technologies ,and in order to overcome the defect that navigation accuracy of gravity gradient aided navigation algorithm is not high in large initial matching error ,the at‐tenuation absolute difference algorithm is introduced to gravity gradient aided navigation , meanwhile ,improved the sampling strategy to avoid the bad real‐time defects .Simulation results show that the accuracy of gravity gradient aided navigation is a grid around ,even in the case of larger initial errors .关键词
惯性导航/辅助导航/重力梯度/等值线匹配Key words
Inertial navigation system/aided navigation/gravity gradient/iterative clo-sest contour point分类
航空航天引用本文复制引用
秦宇杰,王可东..基于重力测量卫星的重力梯度辅助导航研究[J].全球定位系统,2016,41(1):19-23,5.基金项目
国家自然科学基金 （）
